Obsor

Obsor is an advanced Open-Source multi-layer Python code obfuscation framework designed for code protection, intellectual property security, and security research. It supports over 20 obfuscation and encryption techniques, preset protection profiles, executable building, and automated testing.

This tool focuses on making Python source code difficult to analyze while maintaining full runtime compatibility.

---

Features

• 23+ obfuscation and encoding techniques
• Multi-layer obfuscation (unlimited stacking)
• Preset protection modes (military, max, light, stealth)
• AES-256-CBC encryption using pycryptodome
• Pure-Python RC4 implementation
• Classical cipher support (Vigenère, Caesar, Atbash, Polybius)
• Compression-based obfuscation (zlib, bz2)
• Bytecode serialization using marshal
• Automatic random key generation
• Optional custom keys for supported methods
• Executable builder using PyInstaller
• Built-in obfuscated script testing
• Cross-platform support (Windows, macOS, Linux)
• Colored CLI output and progress animation

---

Obfuscation Techniques Explained

Encoding:

• Base64 / Base32 / Base85
• Hexadecimal
• Octal
• URL percent encoding
• UUEncode
• Character code conversion

Encryption:

• AES-256-CBC (secure symmetric encryption)
• XOR (single-byte)
• RC4 stream cipher
• Vigenère cipher
• Caesar cipher
• Atbash cipher
• Polybius square cipher

Compression:

• zlib (DEFLATE)
• bz2 (BZIP2)

Bytecode:

• Marshal serialization (Python bytecode)

Layering / Transformation:

• Minify (remove comments and extra whitespace)
• Reverse
• Split (chunk-based reconstruction)
• Whitespace encoding (tabs/spaces)
• ROT13

---

Preset Modes

military
minify → aes → zlib → base85 → split → reverse → marshal → vigenere

max
minify → aes → marshal → bz2 → base64 → xor → whitespace → rc4

light
base64 → reverse

stealth
whitespace → split → charcode → hex → url

---

Installation

Clone the repository:

git clone https://github.com/g0w6y/obsor
cd obsor

Install dependencies:

pip install -r requirements.txt

---

Requirements

• Python 3.7 or newer

Optional:

• pycryptodome (required for AES)
• pyinstaller (required for executable building)
• colorama (for colored output)

---

Basic Usage

python obsor.py -i input_script.py -o output.py

---

Command Line Interface

python obsor.py [-h]
    -i INPUT
    [-o OUTPUT]
    [-m METHODS]
    [--preset {military,max,light,stealth}]
    [-k KEY]
    [--chunk-size CHUNK_SIZE]
    [--list-methods]
    [--build-exe]
    [--exe-onefile]
    [--exe-console]
    [--exe-icon EXE_ICON]
    [--test]
    [--save-keys]

---

Usage Examples

Basic obfuscation:

python main.py.py -i script.py -o obfuscated.py -m base64,zlib

Military-grade preset with executable:

python main.py -i script.py --preset military --build-exe

AES encryption with custom key:

python main.py -i script.py -m aes,base85 -k "MySecretKey123"

Test obfuscated script:

python main.py -i script.py -m base64,zlib --test

List available methods:

python main.py --list-methods

Create standalone executable with icon:

python main.py -i script.py --preset max --build-exe --exe-icon icon.ico

---

Cross-Platform Notes

• Fully compatible with Windows, macOS, and Linux
• Generated executables are OS-specific
• Marshal output depends on Python version
• AES requires pycryptodome to be installed on the target system

---

Project Structure

obsor/
├── obsor.py #obfuscated example
├── main.py 
├── requirements.txt
├── README.md
├── LICENSE
├── NOTICE
└── dist/

---

⚠ Disclaimer

This tool is intended for educational purposes, security research, and legitimate code protection only.

Do NOT use for:

• Malicious code distribution
• Bypassing security measures
• Illegal activities
• Hiding malware or viruses

The author g0w6y is not responsible for any misuse or damage caused by this tool. Users are solely responsible for complying with all applicable local, state, and federal laws.

---

Contributing

Contributions, issues, and feature requests are welcome.

Steps:

• Fork the repository
• Create a feature branch
• Commit your changes
• Push to the branch
• Open a pull request

---

⚖️ Attribution & Licensing This project is licensed under the Apache License 2.0.

When redistributing or using this project, you must comply with the Apache License by retaining the LICENSE and NOTICE files.

Attribution is appreciated. If you choose to credit the original work, you may reference:

Project: Obsor Python Obfuscator

Author: Gouri Sankar A. (g0w6y)

Repository: https://github.com/g0w6y/obsor

Built by g0w6y